Twenty Seven Co. Limited (ASX: TSC) has announced that the assay results received from August’s field trip to its Rover Project in WA’s goldfields confirm VMS style geology and gold mineralisation.
The company reported that the gold anomalism in soils extended materially along strike south of Creasy 1 and TSC rock-chips found in BIF 700m south of nearest historic drill-hole.
TSC said that the assays confirmed a 200m long zinc-lead anomaly in soils and rock-chips within a broader copper and gold soil anomaly at Creasy 2.
Twenty Seven Co. reported that the new prospect Creasy 3, identified 1.2km south of Creasy 2, has potential for VMS style mineralisation, as copper-gold soil anomalism extends for 1.6km along strike within mafic rocks and metasediments.
The company said that once impending detailed aeromagnetic interpretations are complete and reconciled with geochemistry results, it would formulate a drilling campaign that targets VMS mineralisation and Archean gold along the prospective 12km strike extent.
Rover Project
The Rover project is located ~70km south-east of the Sandstone greenstone belt in WA, that has produced around 1.3Moz of gold.
Several targets were identified by TSC’s geology team at Rover. Among them, the 12km long shear zone which hosts the Creasy 1 & 2 prospects and several other historic gold anomalies has been given priority for immediate exploration.
Third field trip at Rover
The company reported that the August 2019 field trip was done to conduct infill mapping and sampling along the prospective 12km gold strike. TSC said that the exploration focus was on assessing the potential Archean gold and VMS style mineralisation.
Along with mapping and rock chip sampling, TSC’s the geology team collected an additional 311 soil samples on a 200m by 50m grid in an area south of the Creasy 1 & 2 gold-copper prospects.
Encouraging results from sampling program
Twenty Seven Co reported that the latest soil sampling program, as well as the historic geochemical data has confirmed VMS style geology and gold mineralisation at Rover.
Creasy 1 target
The Creasy 1 prospect is the most advanced target at Rover project, with historic shallow economic intercepts in RC drill-holes up to 3m @ 1.94 g/t Au from 53m.
The company reported that the geology team’s work has materially extended gold anomalism in soils south of Creasy 1, as well as found rock-chips up to 1.16g/t Au in BIF 700m south of the nearest drill-hole.
Creasy 2 target
Creasy 2, located ~1.2 km along strike from Creasy 1, has coincident copper-gold soil anomalism associated with mafic rocks in the Maynard Hills greenstone belt. The expressed confidence that Creasy 2 is prospective for VMS style mineralisation, similar to Cobre’s Perrinvale Project.
TSC reported that the August field trip has better defined copper-gold anomalism at Creasy 2, with an encouraging coincident zone of zinc-lead anomalism in rock-chips over 200m in strike; as well as extended the gold-copper soil anomalism south of Creasy 2 by 400m, taking the total strike length to 1.3km.
Creasy 3 target
The company announced that the assay results from the August 2019 field trip have highlighted another area of coincident copper-gold soil anomalism, named Creasy 3, ~1.2km south of the Creasey 2 VMS target.
TSC said that the soil anomalism occurs over mafic rocks and BIF which may indicate potential for VMS style mineralisation at Creasy 3.
Twenty Seven Co. reported that the copper-gold soil anomalism extends over a large area around 1.6km along strike. The company said that the rock chip assays returned from the Creasy 3 prospect contain up to 0.15g/t Au and 0.11g/t Au.
What’s next?
The company reported that the immediate priority is to complete the external review of the detailed aeromagnetic data which covers much of the Rover Project. This data was recently acquired by TSC.
The company reported that it is then planning to integrate the geophysical and geochemistry results to facilitate the ranking of priority targets for follow-up exploration / drill testing for VMS and Archean gold mineralisation later in Q4 2019.
Management comments
TSC’s CEO Ian Warland said: “These latest results are very encouraging for TSC as the assays from our exploration activities along the 12km prospective gold strike in the Rover Project have confirmed evidence of VMS style geology at Creasy 2 and Creasy 3.
Furthermore, copper-gold anomalism in soils has been extended materially at the Creasy 2 prospect. The Rover Project has significant exploration potential, with a twin offering comprising VMS-style targets and known shallow economic gold intercepts along the same greenstone belt.”
